Quote Originally Posted by rebeccaC View Post
I would call that muscular fatigue rather than a bonk. Hypoglycemia (bonking/hitting the wall) and even dehydration have different symptoms than muscular fatigue. With both of the later eventually the brain wants to protect itself by shutting some of the bodies systems down. Both also give emotional and cognitive warning signs, bonking more so. Irritability is one of my early signs. No one bonks without ignoring several warning signs that could have corrected the problem. I'd call it just needing to know our bodies

Irritability is so subjective though. I did a 7K climb century a couple of weekends ago and I sure was not bonking and I was really irritable that despite having done all the advertised climbing (as per my garmin 910), I was still climbing for another 20 miles LOL.